New Member ..Question about CYA test

[PoolDoc]

There are videos here: http://pool9.net/tk-guide/

One tip: when testing CYA, you need outdoor -- but NOT direct -- light.

[nefretrameses]

You can pour the solution back into the squeeze bottle and repeat the test over and over.

Just to be clear, I don't mean that you can re-use the solution the next time you want to do the CYA test, but you can repeat the test with the solution you have mixed a number of times in the current testing session. This allows you to "master" reading the test, because it is difficult to determine when the dot disappears.

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